Nic ("Ghost Rider") play Gary Falkner, a middle aged dude that seems insane but isn't and sort of reminds you of a strange uncle that you don't personally have but imagine many people do. He can't stop talking or expressing himself, is extremely confident in himself, and fails at almost everything as he alienates everyone. His high pitched nasal rantings about whatever pops into his head are always earnest and never just performance for the sake of common decency.
Nic may be known for some crazy over the top acting moments but this performance is almost believable especially once you see some clips of the real Gary Faulkner and realize how true to the guy it is.
The movie itself is a pretty unique story just as it was when it really happened. Gary believes that God has visited him and wants him to go capture Osama Bin Laden himself. In the film Russel Brandt ("Forgetting Sarah Marshall") plays God but even so it's never totally clear whether God is actually talking to him or if it is a figment of his overactive ego.
Of course, as you might expect, a single individual traveling to the middle east to capture the most sought after man in the world will run into some problems not the least of which is his girlfriend Marci. Obviously, she thinks he's nuts and encourages him (read pleads with him) to stay home and give up on his holy calling. There ends up being a lot of interior soul searching for Gary as he tries to figure out how to balance his very real (to him) beliefs and the rest of the world that tells him to ignore a part of himself that he just can't ignore for very long.
I'd love to say that this film transcends and becomes an exploration of the ideas of belief, perception, purpose, and calling but it just never does. He goes back and forth a few times and then things get resolved in a pretty standard way.
I know I'll watch this film a few more times someday but strictly as a chance to show someone a crazy Nic Cage performance that has a few solid laughs in it not as an I'm-in-the-mood-for-a-great-film movie night.